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8
MENU SCREEN
Erase Lost Target
Erases all of the Lost targets at the same time.
When there is no lost targets, this setting is grayed
out.
1. Push [ENTER]/[
].
2. Push [
t
] or [
u
] to select <OK>.
3. Push [ENTER]/[
] again to clear all of the Lost
targets on the screen.
About “Lost Target”:
A vessel is regarded as a “Lost
target” after a specified period of time has passed
since the vessel last transmitted data, as described
on page 28.
The “Lost target” icon disappears from the screen
6 minutes and 40 seconds after the vessel was
regarded as a “Lost target.”
■
Video menu
TUNE
(Default: AUTO)
• Auto:
Automatic tuning selection.
• “TUNE (AUTO)” is displayed in the
upper right corner of the screen.
• Manual:
Manual tuning selection.
• “TUNE (MAN)” is displayed in the upper
right corner of the screen.
Manual TUNE
When “Auto” is selected in the “TUNE” item, this
setting is disabled.
1. Push [ENTER]/[
] to enter the adjustment
mode.
2. Push [
t
] or [
u
] to adjust the level (63 levels).
3. Push [ENTER]/[
] again to save and exit the
adjustment mode.
Dynamic Range
(Default: Narrow)
Selects the dynamic range of the Plan Position
Indicator (PPI).
•Narrow:
Narrow dynamic range. Even weak
reflections are displayed as strong
reflections.
•Middle:
Mid dynamic range.
•Wide:
Wide dynamic range. You can easily
distinguish between weak reflections
and strong reflections.
IR
(Default: 2)
•OFF:
Turns OFF the Interference
Reduction function.
•1 or 2 (ON): Turns ON the Interference Reduction
function 1 (Low) or 2 (High).
L
“IR1” or “IR2” is displayed in the upper right corner of the
screen.
Echo Stretch
(Default: OFF)
• OFF: Turns OFF the echo stretch function.
• ON: Turns ON the echo stretch function.
“ES” is displayed in the upper right corner of
the screen.
Pulse Width
(Default: LP)
• SP: Sets the pulse width to narrow.
• LP: Sets the pulse width to wide. “ ” is displayed
in the upper left corner of the screen.
SEA Curve
(Default: 2)
The SEA knob can be used to fine tune the sea
clutter of the display after one of four main levels (1 to
4) is selected based on the height of the antenna and
sea conditions.
■
System menu
Key Beep
(Default: ON)
• OFF: Turns OFF* the beep tone.
• ON: Turns ON the beep tone.
* Except for the alarm function.
■
AIS
menu (Continued)